TH Meeting on Particle Physics Phenomenology

Measuring V<SUB>ub</SUB> without solving QCD

Name: Measuring V ub without solving QCD
Start: 2000-03-17T14:00:00+01:00
End: 2000-03-17T14:15:00+01:00
Location: CERN

by Zoltan LIGETI (Fermilab)

Friday 17 Mar 2000, 14:00 → 14:15 Europe/Zurich

TH Auditorium (CERN)

TH Auditorium

CERN

Description

Knowing V_ub accurately and with meaningful uncertainties is important for testing the standard model at B factories and for increasing the sensitivity to new physics. I discuss briefly the prospects for a precise and model independent determination of V_ub from exclusive B decays using flavour symmetries. I also explain which regions of the inclusive b Æ u phase space (and why) may give the best determination of V_ub, being insensitive to non-perturbative effects. I hope to balance the talk between a review and a more theoretical discussion of recent work on inclusive decays.